Bag



FIG. 1 is a perspective view of a bag showing my new design;

FIG. 2 is an elevation view of a from side;

FIG. 3 is an elevation view of the rear side;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view;

FIG. 6 is an elevation view of a right side; and,

FIG. 7 is an elevation view of the left side.

The broken lines in the drawings represent stitching and are part of the claimed design. 

The ornamental design for a bag, as shown and described. 